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<title>Problem 2376. -- 保龄球 -- 衡阳八中OJ离线版-2012-02-29</title><center><h2>2376: 保龄球</h2><span class=green>Time Limit: </span>5 Sec&nbsp;&nbsp;<span class=green>Memory Limit: </span>128 MB<br><span class=green>Submit: </span>20&nbsp;&nbsp;<span class=green>Solved: </span>3<br>[<a href='submitpage.php?id=2376'>Submit</a>][<a href='problemstatus.php?id=2376'>Status</a>][<a href='bbs.php?id=2376'>Discuss</a>]</center><h2>Description</h2><div class=content><p class="NormalText" align="center" style="margin: 0cm 0cm 0pt; text-indent: 0cm; text-align: center; mso-char-indent-count: 0"><b><span lang="EN-US" style="font-size: 16pt; mso-bidi-font-size: 12.0pt"><o:p></o:p></span></b></p>
<p class="NormalText" style="margin: 0cm 0cm 0pt; text-indent: 21.75pt; mso-char-indent-count: 0"><font size="3"><span style="font-family: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">你一个人去保龄球馆去打保龄球。总共有</span><span lang="EN-US"><font face="Times New Roman">k</font></span><span style="font-family: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">个球可用。每个球的宽度为</span><span lang="EN-US"><font face="Times New Roman">w</font></span><span style="font-family: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">。在你前方有</span><span lang="EN-US"><font face="Times New Roman">n</font></span><span style="font-family: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">个球棒要打。这</span><span lang="EN-US"><font face="Times New Roman">n</font></span><span style="font-family: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">球棒紧密的排成一行，且第</span><span lang="EN-US"><font face="Times New Roman">i</font></span><span style="font-family: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">个球棒宽度为</span><span lang="EN-US"><font face="Times New Roman">1</font></span><span style="font-family: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">，价值为</span><span lang="EN-US"><font face="Times New Roman">x<sub>i</sub></font></span><span style="font-family: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">。你的每个球恰能击中第</span><span lang="EN-US"><font face="Times New Roman">a</font></span><span style="font-family: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">个</span><span lang="EN-US"><font face="Times New Roman">~</font></span><span style="font-family: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">第</span><span lang="EN-US"><font face="Times New Roman">a+w-1</font></span><span style="font-family: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">个的球棒（如果此球棒存在的话）。球棒被打到就倒了，且互不影响。你可以向任意方向击球，甚至球的一部分可以越过最左、最右边球棒所构成的边界。求最大价值。</span></font></p>
<p class="NormalText" style="margin: 0cm 0cm 0pt; text-indent: 21.75pt; mso-char-indent-count: 0"><span lang="EN-US"><o:p><font face="Times New Roman" size="3">&nbsp;</font></o:p></span></p>
<p></p></div><h2>Input</h2><div class=content><p class="NormalText" style="margin: 0cm 0cm 0pt; text-indent: 21.75pt; mso-char-indent-count: 0"><font size="3"><span style="font-family: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">文件第一行是三个整数</span><span lang="EN-US"><font face="Times New Roman">n,k,w</font></span><span style="font-family: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">。以下</span><span lang="EN-US"><font face="Times New Roman">n</font></span><span style="font-family: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">行是</span><span lang="EN-US"><font face="Times New Roman">n</font></span><span style="font-family: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">个整数，第</span><span lang="EN-US"><font face="Times New Roman">I</font></span><span style="font-family: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">个代表</span><span lang="EN-US"><font face="Times New Roman">x<sub>i</sub></font></span><span style="font-family: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">。</span></font></p>
<p class="NormalText" style="margin: 0cm 0cm 0pt; text-indent: 21.75pt; mso-char-indent-count: 0"><span lang="EN-US"><o:p><font face="Times New Roman" size="3">&nbsp;</font></o:p></span></p>
<p class="NormalText" style="margin: 0cm 0cm 0pt; text-indent: 21.75pt; mso-char-indent-count: 0"></p></div><h2>Output</h2><div class=content><p class="NormalText" style="margin: 0cm 0cm 0pt; text-indent: 21.75pt; mso-char-indent-count: 0"><span style="font-family: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><font size="3">仅一行，为最大价值。</font></span></p>
<p class="NormalText" style="margin: 0cm 0cm 0pt; text-indent: 21.75pt; mso-char-indent-count: 0"><span lang="EN-US"><o:p><font face="Times New Roman" size="3">&nbsp;</font></o:p></span></p>
<pre></pre></div><h2>Sample Input</h2>
			<div class=content><span class=sampledata>9 2 3<br />
2<br />
8<br />
5<br />
1<br />
9<br />
6<br />
9<br />
3<br />
2<br />
 <br />
<br />
</span></div><h2>Sample Output</h2>
			<div class=content><span class=sampledata><br />
39<br />
<br />
 <br />
<br />
</span></div><h2>HINT</h2>
			<div class=content><p><p>100%的数据满足1&le;n&le;10000，1&le;w&le;100，1&le;k&le;500；<br /><br />
</p></p></div><h2>Source</h2>
			<div class=content><p><a href='problemset.html?search=CCC2007'>CCC2007</a></p></div><center>[<a href='submitpage.php?id=2376'>Submit</a>][<a href='problemstatus.php?id=2376'>Status</a>][<a href='bbs.php?id=2376'>Discuss</a>]</center>﻿<br>

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